Pirelli P Zero SmarTube EVO Tube - 700 x 25 - 28mm 42mm Presta Valve ModelNumber=281 37 BB/Frame Interface English BB

37 BB/Frame Interface English BB Shell Width (mm) 68 Spindle Interface Type Square Taper JIS Spindle Length 107 Defined Color Black

Optimized power and modulation for triathlon and time trial

Color Black Rear Der/Shifter Compatibility Shimano DynaSys Drivetrain Speeds 11 Weight 123 Shifter Style Thumb

Brake Lever Actuation Long Pull Color Blue Pad Attachment Style Threaded Post Weight 263 Material Aluminum Defined Color Blue

Compliant tuned front wheel improves handling and maximizes grip and control in turns

Pirelli P Zero SmarTube EVO Tube - 700 x 25 - 28mm 42mm Presta Valve ModelNumber=281 37 BB/Frame Interface English BB5% faster than Previous SmarTUBE 70% weight savings compared to conventional tubes 50% smaller than conventional tubes 42mm valve stem = 35 grams Not for use with rim brakes Not designed to be repaired Constructed of Thermoplastic Polyurethane TECH SPECS Shaft Type Non threaded Tube Weight 35g Valve Length 42mm Tube Width 25 28C Valve Presta Wheel Diameter 700C